您好我15岁，刚刚开始学习HTML CSS和JavaScript。
我正在尝试编辑一个下拉菜单，用于在结帐页面上列出所有50个州，默认情况下，当页面加载并且我希望它说“状态”时它是空白的。我正在尝试再添加一个选项，其中显示“State”，其属性为selected和disabled。我不清楚如何做到这一点，因为它是所有的JavaScript，而且我已经在网上查找并且一无所获。
所以我需要一些关于如何做到这一点的帮助，我不知道如何在JavaScript中做到这一点
我没有写任何这些代码，我不知道它的大部分甚至是什么，这就是为什么我给你整个文档，我只是想编辑它。
这是我想编辑的JavaScript / PHP。
// If you have PHP you can set the post values like this
//var postState = '<?= $_POST["state"] ?>';
//var postCountry = '<?= $_POST["country"] ?>';
var postState = 'US';
var postCountry = 'FL';
// State table
//
// To edit the list, just delete a line or add a line. Order is important.
// The order displayed here is the order it appears on the drop down.
//
var stateList = '\
US:AL:Alabama|\
US:AK:Alaska|\
CA:AB:Alberta|\
US:AZ:Arizona|\
US:AR:Arkansas|\
CA:BC:British Columbia|\
US:CA:California|\
US:CO:Colorado|\
US:CT:Connecticut|\
US:DE:Delaware|\
US:DC:District of Columbia|\
US:FL:Florida|\
US:GA:Georgia|\
US:HI:Hawaii|\
US:ID:Idaho|\
US:IL:Illinois|\
US:IN:Indiana|\
US:IA:Iowa|\
US:KS:Kansas|\
US:KY:Kentucky|\
US:LA:Louisiana|\
US:ME:Maine|\
CA:MB:Manitoba|\
US:MD:Maryland|\
US:MA:Massachusetts|\
US:MI:Michigan|\
US:MN:Minnesota|\
US:MS:Mississippi|\
US:MO:Missouri|\
US:MT:Montana|\
US:NE:Nebraska|\
US:NV:Nevada|\
CA:NB:New Brunswick|\
US:NH:New Hampshire|\
US:NJ:New Jersey|\
US:NM:New Mexico|\
US:NY:New York|\
CA:NL:Newfoundland and Labrador|\
US:NC:North Carolina|\
US:ND:North Dakota|\
CA:NT:Northwest Territories|\
CA:NS:Nova Scotia|\
CA:NU:Nunavut|\
US:OH:Ohio|\
US:OK:Oklahoma|\
CA:ON:Ontario|\
US:OR:Oregon|\
US:PA:Pennsylvania|\
CA:PE:Prince Edward Island|\
US:PR:Puerto Rico|\
CA:QC:Quebec|\
US:RI:Rhode Island|\
CA:SK:Saskatchewan|\
US:SC:South Carolina|\
US:SD:South Dakota|\
US:TN:Tennessee|\
US:TX:Texas|\
US:UT:Utah|\
US:VT:Vermont|\
US:VI:Virgin Islands|\
US:VA:Virginia|\
US:WA:Washington|\
US:WV:West Virginia|\
US:WI:Wisconsin|\
US:WY:Wyoming|\
CA:YT:Yukon Territory|\
';
// Country data table
//
// To edit the list, just delete a line or add a line. Order is important.
// The order displayed here is the order it appears on the drop down.
//
var country = '\
AF:Afghanistan|\
AX:Aland Islands|\
AL:Albania|\
DZ:Algeria|\
AS:American Samoa|\
AD:Andorra|\
AO:Angola|\
AI:Anguilla|\
AQ:Antarctica|\
AG:Antigua & Barbuda|\
AR:Argentina|\
AM:Armenia|\
AW:Aruba|\
AU:Australia|\
AT:Austria|\
AZ:Azerbaijan|\
AP:Azores|\
BS:Bahamas|\
BH:Bahrain|\
BD:Bangladesh|\
BB:Barbados|\
BY:Belarus|\
BE:Belgium|\
BZ:Belize|\
BJ:Benin|\
BM:Bermuda|\
BT:Bhutan|\
BO:Bolivia|\
BL:Bonaire|\
BA:Bosnia|\
BW:Botswana|\
BV:Bouvet Island|\
BR:Brazil|\
VG:British Virgin Islands|\
BN:Brunei|\
BG:Bulgaria|\
BF:Burkina Faso|\
BI:Burundi|\
KH:Cambodia|\
CM:Cameroon|\
CA:Canada|\
IC:Canary Islands|\
CV:Cape Verde Islands|\
KY:Cayman Islands|\
CF:Central African Republic|\
TD:Chad|\
CD:Channel Islands|\
CL:Chile|\
CN:China|\
CX:Christmas Island|\
CC:Cocos (keeling) Islands|\
CO:Colombia|\
CG:Congo|\
CK:Cook Islands|\
CR:Costa Rica|\
CI:Cote Divoire|\
HR:Croatia|\
CB:Curacao|\
CY:Cyprus|\
CZ:Czech Republic|\
DK:Denmark|\
DJ:Djibouti|\
DM:Dominica|\
DO:Dominican Republic|\
EC:Ecuador|\
EG:Egypt|\
SV:El Salvador|\
EN:England|\
GQ:Equitorial Guinea|\
ER:Eritrea|\
EE:Estonia|\
ET:Ethiopia|\
FO:Faeroe Islands|\
FK:Falkland Islands (Malvinas)|\
FJ:Fiji|\
FI:Finland|\
FR:France|\
GF:French Guiana|\
PF:French Polynesia|\
TF:French Southern Territories|\
GA:Gabon|\
GM:Gambia|\
GE:Georgia|\
DE:Germany|\
GH:Ghana|\
GI:Gibraltar|\
GR:Greece|\
GL:Greenland|\
GD:Grenada|\
GP:Guadeloupe|\
GU:Guam|\
GT:Guatemala|\
GG:Guernsey|\
GN:Guinea|\
GW:Guinea-Bissau|\
GY:Guyana|\
HT:Haiti|\
HM:Heard Island and Mcdonald Islands|\
HO:Holland|\
VA:Holy See (Vatican City State)|\
HN:Honduras|\
HK:Hong Kong|\
HU:Hungary|\
IS:Iceland|\
IN:India|\
ID:Indonesia|\
IR:Iran|\
IQ:Iraq|\
IE:Ireland|\
IM:Isle of Man|\
IL:Israel|\
IT:Italy|\
JM:Jamaica|\
JP:Japan|\
JE:Jersey|\
JO:Jordan|\
KZ:Kazakhstan|\
KE:Kenya|\
KI:Kiribati|\
KP:Korea, Democratic People\'s Republic of|\
KR:Korea, Republic of|\
KO:Kosrae|\
KW:Kuwait|\
KG:Kyrgyzstan|\
LA:Laos|\
LV:Latvia|\
LB:Lebanon|\
LS:Lesotho|\
LR:Liberia|\
LY:Libyan Arab Jamahiriya|\
LI:Liechtenstein|\
LT:Lithuania|\
LU:Luxembourg|\
MO:Macau|\
MK:Macedonia, Republic of|\
MG:Madagascar|\
MW:Malawi|\
MY:Malaysia|\
MV:Maldives|\
ML:Mali|\
MT:Malta|\
MH:Marshall Islands|\
MQ:Martinique|\
MR:Mauritania|\
MU:Mauritius|\
YT:Mayotte|\
MX:Mexico|\
FM:Micronesia, Federated States of|\
MD:Moldova|\
MC:Monaco|\
MN:Mongolia|\
ME:Montenegro, Republic of|\
MS:Montserrat|\
MA:Morocco|\
MZ:Mozambique|\
MM:Myanmar|\
NA:Namibia|\
NR:Nauru|\
NP:Nepal|\
NL:Netherlands|\
AN:Netherlands Antilles|\
NC:New Caledonia|\
NZ:New Zealand|\
NI:Nicaragua|\
NE:Niger|\
NG:Nigeria|\
NU:Niue|\
NF:Norfolk Island|\
NB:Northern Ireland|\
MP:Northern Mariana Islands|\
NO:Norway|\
OM:Oman|\
PK:Pakistan|\
PW:Palau|\
PS:Palestinian Territory, Occupied|\
PA:Panama|\
PG:Papua New Guinea|\
PY:Paraguay|\
PE:Peru|\
PH:Philippines|\
PN:Pitcairn Island|\
PL:Poland|\
PO:Ponape|\
PT:Portugal|\
PR:Puerto Rico|\
QA:Qatar|\
RE:Reunion|\
RO:Romania|\
RT:Rota|\
RU:Russia|\
RW:Rwanda|\
SS:Saba|\
SP:Saipan|\
SM:San Marino|\
ST:Sao Tome and Principe|\
SA:Saudi Arabia|\
SF:Scotland|\
SN:Senegal|\
RS:Serbia, Republic of|\
SC:Seychelles|\
SL:Sierra Leone|\
SG:Singapore|\
SK:Slovakia|\
SI:Slovenia|\
SB:Solomon Islands|\
SO:Somalia|\
ZA:South Africa|\
ES:Spain|\
LK:Sri Lanka|\
NT:St. Barthelemy|\
SW:St. Christopher|\
SX:St. Croix|\
EU:St. Eustatius|\
UV:St. John|\
KN:St. Kitts & Nevis|\
LC:St. Lucia|\
MB:St. Maarten|\
TB:St. Martin|\
VL:St. Thomas|\
VC:St. Vincent & the Grenadines|\
SD:Sudan|\
SR:Suriname|\
SZ:Swaziland|\
SE:Sweden|\
CH:Switzerland|\
SY:Syrian Arab Republic|\
TA:Tahiti|\
TW:Taiwan|\
TJ:Tajikistan|\
TZ:Tanzania|\
TH:Thailand|\
TL:Timor-Leste|\
TI:Tinian|\
TG:Togo|\
TO:Tonga|\
TT:Trinidad and Tobago|\
TU:Truk|\
TN:Tunisia|\
TR:Turkey|\
TM:Turkmenistan|\
TC:Turks & Caicos Islands|\
TV:Tuvalu|\
UG:Uganda|\
UA:Ukraine|\
UI:Union Island|\
AE:United Arab Emirates|\
GB:United Kingdom|\
US:United States|\
UY:Uruguay|\
VI:US Virgin Islands|\
UZ:Uzbekistan|\
VU:Vanuatu|\
VE:Venezuela|\
VN:Vietnam|\
VR:Virgin Gorda|\
WK:Wake Island|\
WL:Wales|\
WF:Wallis and Futuna|\
EH:Western Sahara|\
WS:Western Samoa|\
YA:Yap|\
YE:Yemen|\
ZR:Zaire|\
ZM:Zambia|\
ZW:Zimbabwe|\
';
country = country.substring(0, country.length-1) // Deleting the last "|" character
function get_Element(i)
{
return document.getElementById(i) || document.getElementsByName(i).item(0);
}
function TrimString(sInString) {
if ( sInString ) {
sInString = sInString.replace( /^\s+/g, "" );// strip leading
return sInString.replace( /\s+$/g, "" );// strip trailing
}
}
// Populates the country selected with the counties from the country list
function populateCountry(defaultCountry,countryfieldname) {
if (defaultCountry=="") {defaultCountry="US"}
var countryLineArray = country.split('|'); // Split into lines
var selObj = get_Element(countryfieldname);
if (!selObj) return;
selObj.options[0] = new Option('','');
selObj.selectedIndex = 0;
for (var loop = 0; loop < countryLineArray.length; loop++) {
lineArray = countryLineArray[loop].split(':');
countryCode = TrimString(lineArray[0]);
countryName = TrimString(lineArray[1]);
if ( countryCode != '' ) { selObj.options[loop] = new Option(countryName, countryCode); }
if ( defaultCountry == countryCode ) { selObj.selectedIndex = loop; }
}
}
function populateState(statefieldname,countryfieldname,state1,optionalCreateTextField) {
//optionalCreateTextField = optional parameter, true/false. When a country doesn't have state, it'll determine if the code creates a text field for the state or just let the dropdown empty.
var isOpera = false, isIE = false;
var strClassName;
var originalTabIndex;
if(typeof(window.opera) != 'undefined')
{isOpera = true;}
if(!isOpera && (navigator.userAgent.indexOf('Internet Explorer') > 0 || navigator.userAgent.indexOf('MSIE') > 0) && navigator.userAgent.indexOf('MSIE 9') < 0 && navigator.userAgent.indexOf('MSIE 10') < 0)
{isIE = true;}
if (state1==undefined) {state1='';}
postCountry=get_Element(countryfieldname);
if (!postCountry) return;
postCountry=postCountry.value;
var selObj = get_Element(statefieldname);
if (!selObj) return;
var foundState = false;
originalTabIndex = selObj.getAttribute("tabindex");
// Empty options just in case new drop down is shorter
if ( selObj.type == 'select-one' ) {
selObj.options.length = 0;
// selObj.options[0] = new Option('Select State','');
// selObj.selectedIndex = 0;
}
// Populate the drop down with states from the selected country
//
var stateLineArray = stateList.split("|"); // Split into lines
var optionCntr = 0;
for (var loop = 0; loop < stateLineArray.length; loop++) {
lineArray = stateLineArray[loop].split(":");
countryCode = TrimString(lineArray[0]);
stateCode = TrimString(lineArray[1]);
stateName = TrimString(lineArray[2]);
if ( get_Element(countryfieldname).value == countryCode && countryCode != '' ) {
// If it's a input element, change it to a select
//
if ( selObj.type == 'text' ) {
strClassName = selObj.className;
parentObj = get_Element(statefieldname).parentNode;
// Create the Input Field
if(!isIE){
var inputSel = document.createElement("SELECT");
inputSel.setAttribute("name", statefieldname);
if (strClassName != 'undefined' && strClassName != '')
inputSel.setAttribute("class",strClassName);
else
inputSel.setAttribute("class","txtBoxStyle");
inputSel.setAttribute("id", statefieldname);
}
else
{
var inputSel = document.createElement("<select name="+statefieldname+" id="+statefieldname+">");
if (strClassName != 'undefined' && strClassName != '')
inputSel.setAttribute("className",strClassName);
else
inputSel.setAttribute("className","txtBoxStyle");
}
inputSel.setAttribute("tabindex", originalTabIndex);
parentObj.insertBefore(inputSel, selObj.nextSibling);
parentObj.removeChild(selObj);
selObj = get_Element(statefieldname);
}
if (optionCntr==0)
{
selObj.options[optionCntr] = new Option('','');
selObj.selectedIndex = optionCntr;
optionCntr++;
}
if ( stateCode != '' ) {
selObj.options[optionCntr] = new Option(stateName, stateCode);
}
// See if it's selected from a previous post
//
if ( stateCode == state1 && countryCode == postCountry ) {
selObj.selectedIndex = optionCntr;
}
foundState = true;
optionCntr++
}
}
// If the country has no states, change the select to a text box
//
if ( ! foundState ) {
if (postCountry == 'ALL')
{
//var selObj = get_Element(statefieldname);
selObj.options.length = 0;
selObj.options[0] = new Option('ALL','ALL');
selObj.selectedIndex = 0;
}
else
{
if (optionalCreateTextField == undefined)
var createText = true;
else
var createText = optionalCreateTextField;
if (createText)
{
strClassName = selObj.className;
parentObj = get_Element(statefieldname).parentNode;
// Create the Input Field
if(!isIE){
var inputEl = document.createElement("input");
inputEl.setAttribute("name", statefieldname);
if (strClassName != 'undefined' && strClassName != '')
inputEl.setAttribute("class",strClassName);
else
inputEl.setAttribute("class","txtBoxStyle");
inputEl.setAttribute("id", statefieldname);
}
else
{
var inputEl = document.createElement("<input name=\""+statefieldname+"\" id=\""+statefieldname+"\" />");
if (strClassName != 'undefined' && strClassName != '')
inputEl.setAttribute("className",strClassName);
else
inputEl.setAttribute("className","txtBoxStyle");
}
inputEl.setAttribute("tabindex", originalTabIndex);
inputEl.setAttribute("type", "text");
inputEl.setAttribute("size", 20);
inputEl.setAttribute("value", state1);
parentObj.insertBefore(inputEl, selObj.nextSibling);
parentObj.removeChild(selObj);
}
}
}
}
function insertCountry(strCountryName,countryfieldname) {
var selObj = get_Element(countryfieldname);
if (!selObj) return;
selObj.options[selObj.options.length] = new Option('ALL','ALL');
selObj.selectedIndex = selObj.options.length-1;
}
function initCountry(country,state1,statefieldname,countryfieldname) {
populateCountry(country,countryfieldname);
populateState(statefieldname,countryfieldname,state1);
}
function GetValue(formx,name1) {
//alert(name1);
var i;
for(i=0;i<formx.elements.length;i++) {
if(formx.elements[i].name==name1) {
return formx.elements[i].value;
}
}
}
这是HTML
<div class="chkField">
<label for="billing_state">[CustomerInfo_state]</label>
<select id="billing_state" onchange="this.form.billing_zip.value='';check_address('billing');" name="billing_state" tabindex="9" class="txtBoxStyle">
</select>
我不知道如何很好地编辑JavaScript，但它似乎是在网页上创建HTML选项，我不知道如何创建另一个说“状态”，任何帮助将不胜感激。
谢谢，
安德鲁
答案 0 :(得分：1)
尝试使用jquery的append（）函数 比如你的html就像
<html>
<select id="temp"></select>
</html>
$("#temp").append("<option>Your Value</option>")